Hello, I can suggest 5 tools for check for broken links, There are :- Xenu’s Link Sleuth (Windows Only)- Screaming Frog SEO Spider (Windows & Mac)- Google Webmaster Tools- W3C Link Checker- LinkCheckerAlso, Broken links are those link which do not exist. It’s a dead link with 404 status code. For any Website there are many broken link checker Websites Or you can use Xenu to check all broken links on your blog. But when it comes to WordPress, there are plugins like Broken link checker which makes our life easier.